Nitroimidazole derivatives used for amoebiasis, trichomoniasis and giardiasis are classified in this group. Formulations for vaginal administration are classified in G01AF. Parenteral formulations mainly used for treatment of anaerobic bacterial infections are classified in J01XD. Fixed combination packages for eradication of Helicobacter pylori are classified in A02BD.

Combinations with antibacterials are classified in J01R.

The DDDs are based on the treatment of amoebiasis, giardiasis and trichomoniasis. The duration of the treatment periods is not taken into consideration.